Παραπομπή APA

(1958). The population of Sudan: Report on the sixth annual conference. Khartoum: [s.n.].

Παραπομπή Chicago Style

The Population of Sudan: Report On the Sixth Annual Conference. Khartoum: [s.n.], 1958.

Παραπομπή MLA

The Population of Sudan: Report On the Sixth Annual Conference. Khartoum: [s.n.], 1958.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.